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The station is being started and Gas turbines/Generators are synchronized, then the IGV's are disabled to increase station output(so to Grid the generation MW profile is higher, making us more attractive to be called on).
The DCS gives a start point of say 60MW's per GT, but some operators are putting in a profile to grid indicating each GT start point is 95MW. So once the Gens are sync'd, the GT's are loaded to 95MW's.
My question please is simply although the station output looks commercially attractive, and the GT exhaust temps are lower (so the HRSG's are not experiencing high thermal shocks/gradients) with the IGV's disabled (that's the only functions for IGV enabled or disabled). I believe its most inefficient, and possibly detrimental to the HRSG (over time). has anyone experienced/researched this situation. Thanks
The DCS gives a start point of say 60MW's per GT, but some operators are putting in a profile to grid indicating each GT start point is 95MW. So once the Gens are sync'd, the GT's are loaded to 95MW's.
My question please is simply although the station output looks commercially attractive, and the GT exhaust temps are lower (so the HRSG's are not experiencing high thermal shocks/gradients) with the IGV's disabled (that's the only functions for IGV enabled or disabled). I believe its most inefficient, and possibly detrimental to the HRSG (over time). has anyone experienced/researched this situation. Thanks